I just got my 07 back...2 days to have 4.10 gears and complete Eibach pro system plus suspension kit installed..
It look awesome! While I forgot to.measure the 'before' it looks like it went down about 2".
Ride is fine.

So onto the new gears. Perhaps my expectations were incorrectly set on this change. I was expecting a major change in launches bit dont really see it. By moving from stock 3.27s to 4.10s I only see a slight difference, of course my speedo was off which got adjusted later by my sct tuner.

Maybe time will prove different, but I question the $500 I dropped on gears.

So 2 thumbs up on the lowering kit...
But the gears...I wouldn't bother next time.

Ok I need to modify my view on the gears...
I drove into work today and I was blown away at the difference.
Perhaps my initial experience was because I hadnt modified my tune to reflect the gear change...I have an auto and so I realize the shift points needed adjustments in addition to the speedo calibration.
Also my work commute is more city than my drive home yesterday from.my mechanic.

Ok I need to modify my view on the gears...
I drove into work today and I was blown away at the difference.
Perhaps my initial experience was because I hadnt modified my tune to reflect the gear change...I have an auto and so I realize the shift points needed adjustments in addition to the speedo calibration.
Also my work commute is more city than my drive home yesterday from.my mechanic.

I would recommend the gear change now...they are awesome.

Hahaha I bet! I can't wait to get my gears, I need to find a mechanic to cheaply put mine in!

Take it easy though man on the first 500 miles don't want to ruin your rear end!

Not if It's set up right. NASCAR runs what they brung. Butttttttttttt on the other hand, if it makes any more noise than stock It's not right. Don't settle for that's the way 4.10s sound. If it is louder, don't get on it, take it back.

Not if It's set up right. NASCAR runs what they brung. Butttttttttttt on the other hand, if it makes any more noise than stock It's not right. Don't settle for that's the way 4.10s sound. If it is louder, don't get on it, take it back.

So i am just noticing an odd noise since upgrading to 4.10..
Only hear it when moving from say 20-30 mph..from a stop..in the rear sounds like dry metal on metal maybe?...hard to describe.. No problem in the higher bands...
Before I take it back...any ideas?

Ya that's sounds bad best to get the car on the lift ASAP, could be something simple or bad and only will get worse if you keep driving, something could just be loose from getting car lowered and it's scraping something and when you go faster the frequencies change so you can't hear it cause I never heard the noise your describing from gears even on really bad install jobs

Ya that's sounds bad best to get the car on the lift ASAP, could be something simple or bad and only will get worse if you keep driving, something could just be loose from getting car lowered and it's scraping something and when you go faster the frequencies change so you can't hear it cause I never heard the noise your describing from gears even on really bad install jobs

Ok so can anyone tell me exactly what I have to do to change my gear oil in the rear end my car had 80000 miles on it and this service has never been performed!?!

Remove cover to drain. Clean cover w putty knife,wire wheel,or scotch brite pad. Clean inside housing well. There is a grove on the bottom that will hold grit and shavings. Use a spray cleaner ( brake or contact ) that evaporates. Put a small bead of sealant on both sides of paper gasket and reinstall cover. The fill plug in on the front drivers side of housing. Pump full till fluid runs out, about 2 1/4-2 1/2 qts. U can get a pump that will screw on to oil jug at parts store for bout $10.

Hey. With lowering kits you need to remove dust shields on the front or it will scrape. A lot of shops don't do it and will make a metal-scraping-metal sound that is sorta quiet and drowns out when you start moving faster. Check that out too

So I grabbed my mechanic and took him on a ride to identify the sound... Prior to arriving at his shop I listened carefully myself and could only reproduce it once or twice.. But not as loud as before.
With him on the seat beside me it was more evident.
He ruled out gears as being the problem and we believe it is now a drone or something similiar.
He checked underneath and didnt see any visible signs of rubbing so believes it is a drone sound from the exhaust that is different sounding now that the car has been lowered.
I will monitor but have scheduled a more exhaustive diagnosis next week.

So I grabbed my mechanic and took him on a ride to identify the sound... Prior to arriving at his shop I listened carefully myself and could only reproduce it once or twice.. But not as loud as before.
With him on the seat beside me it was more evident.
He ruled out gears as being the problem and we believe it is now a drone or something similiar.
He checked underneath and didnt see any visible signs of rubbing so believes it is a drone sound from the exhaust that is different sounding now that the car has been lowered.
I will monitor but have scheduled a more exhaustive diagnosis next week.

Ya, I wouldn't by that either . If It's in the exaust its because It's vibrating off somthing.

One way to tell is what rpm it happens at, hold it in first and drive at 2400-3000 or hold 2nd doing the same if it only happens in certain rpm range I'd say it's the exhaust but if it's speed related I'd start checking around for a second opinion

Thanks for the suggestions.
Really weird that it is hard to repro when by myself...but easy when someone beside me.
It also seems to happen during the initial pull...so stress on the frame or suspension???
I also think suspension stress related noise because on a couple of occasions i heard it when I bounced during a dip in the road and I was just coasting.

Thanks for the suggestions.
Really weird that it is hard to repro when by myself...but easy when someone beside me.
It also seems to happen during the initial pull...so stress on the frame or suspension???
I also think suspension stress related noise because on a couple of occasions i heard it when I bounced during a dip in the road and I was just coasting.